NanoPi R2C

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Contents

1 Introduction

Overview
Front
Back
Case
  • The NanoPi R2C(as "R2C") is an open source platform with dual-Gbps Ethernet ports designed and developed by FriendlyElec for IoT applications.
  • The NanoPi R2C uses the RK3328 SoC. It has two Gbps Ethernet ports and 1G DDR4 RAM. FriendlyElec ported an OpenWrt system for it. It works with Docker CE. It is a good platform for developing IoT applications, NAS applications, smart home gateways etc.

2 Hardware Spec

  • CPU: Rockchip RK3328, Quad-core Cortex-A53
  • DDR4 RAM: 1GB
  • Network:
    • Internal 10/100/1000M Ethernet Port x 1
    • USB3.0 converted 10/100/1000M Ethernet Port x 1
  • USB2.0 Host: Type-A x1
  • MicroSD Slot x 1
  • MicroUSB: power input and USB Slave
  • Debug Serial Port: 3.3V TTL, 3-pin 2.54mm pitch connector, 1500000 bauds
  • LED: LED x 3
  • KEY: KEY x 1 programmable
  • PC Size: 55.6 x 52mm
  • Power Supply: DC 5V/2A
  • Temperature measuring range: 0℃ to 80℃
  • OS/Software: U-boot,Ubuntu-Core,OpenWrt


  • Network Transmission Rates
TX RX
WAN 941 Mbps 941 Mbps
LAN 941 Mbps 941 Mbps
Notes: 1. test utility: iperf
2. use indepedent IP address section and test with a PC in simplex communication mode

3 Diagram, Layout and Dimension

3.1 Layout

NanoPi R2C Layout

  • GPIO Spec
Pin# Name Linux gpio Pin# Name Linux gpio
1 SYS_3.3V 2 VDD_5V
3 I2C0_SDA / GPIO2_D1 89 4 VDD_5V
5 I2C0_SCL / GPIO2_D0 88 6 GND
7 GPIO2_A2 / IR_RX 66 8 UART1_TX / GPIO3_A4 100
9 GND 10 UART1_RX / GPIOG3_A6 102
For more details refer to:NanoPi_R2C_2107_SCH.pdf
Dimensional Diagram:NanoPi_R2C_2107_PCB_DXF.zip

4 Get Started

4.1 Essentials You Need

Before starting to use your NanoPi R2C get the following items ready

  • NanoPi R2C
  • MicroSD Card/TF Card: Class 10 or Above, minimum 8GB SDHC
  • MicroUSB 5V/2A power adapter
  • A host computer running Ubuntu 18.04 64-bit system

4.2 TF Cards We Tested

To make your device boot and run fast we highly recommend you use a Class10 8GB SDHC TF card or a better one. The following cards are what we used in all our test cases presented here:

  • Sandisk MicroSDHC V30 32GB Extreme Pro (Developer choice)

SanDiskExtremePro

  • SanDisk 32GB High Endurance Video MicroSDHC Card with Adapter for Dash Cam and Home Monitoring Systems (High reliability)

SanDiskHighEndurance

  • SanDisk TF 8G Class10 Micro/SD High Speed TF card:

SanDisk microSD 8G

  • SanDisk TF128G MicroSDXC TF 128G Class10 48MB/S:

SanDisk microSD 128G

  • 川宇 8G C10 High Speed class10 micro SD card:

chuanyu microSD 8G

4.3 Serial port debug

Use screen to log in to the serial terminal:

screen /dev/ttyUSB0 1500000 8N1

4.4 Install OS

4.4.1 Flash to TF

Visit download link to download image files and utilities.

Image Files
rk3328-sd-friendlycore-lite-focal-5.10-arm64-YYYYMMDD.img.zip 64-bit FriendlyCore Lite image file based on Ubuntu core 20.04 64bit, kernel version 5.10.y
rk3328-sd-friendlywrt-YYYYMMDD.img.zip FriendlyWrt image file, based on OpenWrt 21.02, kernel version 5.10.y
Flash Utility:
win32diskimager.rar Windows utility. Under Linux users can use "dd"

The detailed steps are as follows:

  • Get an 8G SDHC card and backup its data if necessary;
  • Download and extract the rk3328-sd-OSNAME-YYYYMMDD.img.zip and win32diskimager;
  • Run the win32diskimager utility under Windows as administrator. On the utility's main window select your SD card's drive, the wanted image file and click on "write" to start flashing the SD card. Under Linux run "dd" to flash the rk3328-sd-OSNAME-YYYYMMDD.img file to your SD card;
  • Take out the SD and insert it to NanoPi-R2C's microSD card slot;
  • Power on NanoPi-R2C and it will be booted from your TF card;

5 Work with FriendlyWrt

5.1 Introduction to FriendlyWrt

FriendlyWrt is a customized system made by FriendlyElec based on an OpenWrt distribution. It is open source and well suitable for developing IoT applications, NAS applications, smart home gateways etc.

5.2 First boot

For the first boot, the system needs to do the following initialization work:
1)Extended root file system
2)Initial setup(will execute /root/setup.sh)
So you need to wait for a while (about 2~3 minutes) to boot up for the first time, and then set FriendlyWrt, you can enter the ttyd terminal on the openwrt webpage, when the prompt is displayed as root@FriendlyWrt, it means the system has been initialized.

root@FriendlyWrt

5.3 Account & Password

The default password is password (empty password in some versions). Please set or change a safer password for web login and ssh login. It is recommended to complete this setting before connecting NanoPi-R2C to the Internet.

5.4 Network Connection

Use a network cable to connect NanoPi-R2C's WAN to a master router and the board will get an IP address via DHCP. Login into the router and check NanoPi-R2C's IP address.

5.5 Login FriendlyWrt

Connect the PC to the LAN port of NanoPi-R2C. If your PC without a built-in ethernet port, connect the LAN port of the wireless AP to the LAN port of NanoPi-R2C, and then connect your PC to the wireless AP via WiFi , Enter the following URL on your PC's browser to access the admin page:

The above is the LAN port address of NanoPi-R2C. The IP address of the WAN port will be dynamically obtained from your main router through DHCP.

5.6 Recommended security settings

The following settings are highly recommended to complete before connecting NanoPi-R2C to the Internet。

  • Set a secure password
  • Only allow access to ssh from lan, change the port
  • Only allow local devices to access luci

Edit /etc/config/uhttpd,Change the original 0.0.0.0 and [::] addresses to the local lan address, for example:

	# HTTP listen addresses, multiple allowed
	list listen_http	192.168.2.1:80
	list listen_http	[fd00:ab:cd::1]:80
 
	# HTTPS listen addresses, multiple allowed
	list listen_https	192.168.2.1:443
	list listen_https	[fd00:ab:cd::1]:443

Restart the service:

/etc/init.d/uhttpd restart
  • Check the firewall settings

By default, FriendlyWrt will set the WAN incoming traffic to ACCEPT, which is convenient for testing but reduces security, you can execute the following command to restore to the default settings of openwrt, the management page can only be accessed by devices connected to the lan port:

uci set firewall.@zone[1].input='REJECT'
uci set firewall.@zone[1].output='ACCEPT'
uci set firewall.@zone[1].forward='REJECT'
uci commit firewall
fw3 reload

5.7 Safe shutdown operation

Enter the ttyd terminal, enter the poweroff command and hit enter, wait until the led light is off, and then unplug the power supply.

5.8 Install Software Packages

5.8.1 Update Package List

Before install software packages update the package list:

$ opkg update

5.8.2 List Available Packages

$ opkg list

5.8.3 List Installed Packages

$ opkg list-installed

5.8.4 Install Packages

$ opkg install <package names>

5.8.5 Remove Packages

$ opkg remove <package names>

5.9 Disable IPv6

. /root/setup.sh
disable_ipv6
reboot

5.10 Configure the function of the user button

By default, the user button is configured to reboot the device, as shown below:

echo 'BTN_1 1 /sbin/reboot' >> /etc/triggerhappy/triggers.d/example.conf

You can change its behavior by changing the configuration file above.

5.11 Some common issues of FriendlyWrt

  • Unable to dial up
    • Go to "Network" -> "Firewall" and set "Inbound Data", "Outbound Data" and "Forwarding" in "WAN Zone" to "Accept";
    • If you still cannot access the Internet, you can try to turn off IPV6;
  • Unable to power on
    • Try to replace the power adapter and cable. It is recommended to use a power supply with specifications above 5V/2A;
    • Note that some fast chargers with Type-C interface will have a delay, it may take a few seconds to start providing power;
  • When doing secondary routing, the computer cannot connect to the Internet
    • If your main network is IPv4, and NanoPi-R2C works in IPv6, the computer may not be able to connect to the Internet. It is recommended to turn off IPv6 (the method is described later in this WiKi), or switch the main route to IPv6;
  • If you have questions or have better suggestions, please send an email to techsupport@friendlyarm.com;

5.12 Use USB2LCD to view IP and temperature

Plug the USB2LCD module to the USB interface ofNanoPi-R2C and power on, the IP address and CPU temperature will be displayed on the LCD:
R2S-usb2lcd-01.jpg



5.13 Work with USB WiFi Device

5.13.1 Check USB WiFi Device with Command Line Utility

(1) Click on "services>ttyd" to start the command line utility
R2s-wrt-jellyfin-002.jpg
(2) Make sure no USB devices are connected to your board and run the following command to check if any USB devices are connected or not

lsusb

R2swrt+usbwifi-09.jpg

(3) Connect a USB WiFi device to the board and run the command again

lsusb

You will see a new device is detected. In our test the device's ID was 0BDA:C811
R2swrt+usbwifi-10.jpg

(4) Type your device's ID (in our case it was "0BDA:C811" or "VID_0BDA&PID_C811") in a search engine and you may find a device that matches the ID. In our case the device we got was Realtek 8811CU.

5.13.2 Configure a USB WiFi Device as AP

(1) Connect a USB WiFi device to the NanoPi-R2C. We recommend you to use the following devices:
R2swrt+usbwifi-20210831.jpg
Note: devices that match these VID&PIDs would most likely work.
(2) Click on "System>Reboot" and reboot your NanoPi-R2C
R2swrt+usbwifi-01.jpg

R2swrt+usbwifi-02.jpg
(3) Click on "Network>Wireless" to enter the WiFi configuration page
R2swrt+usbwifi-03.jpg
(4) Click on "Edit" to edit the configuration
R2swrt+usbwifi-04.jpg
(5) On the "Interface Configuration" page you can set the WiFi mode and SSID, and then go to "Wireless Security" to change the password. By default the password is "password". After you make your changes click on "Save" to save
R2swrt+usbwifi-05.jpg

R2swrt+usbwifi-06.jpg
(6) After you change the settings you can use a smartphone or PC to search for WiFi
R2swrt+usbwifi-07.png

5.13.3 Common USB WiFi issues

1) It is recommended to plug in the usb wifi in the off state, then power it on, FriendlyWrt will automatically generate the configuration file /etc/config/wireless, if not, see if there is wlan0 by ifconfig -a, if there is no wlan0, usually there is no driver.
2) If ifconfig -a sees wlan0, but the hotspot is not working properly, try changing the channel and country code, an inappropriate country code can also cause the WiFi to not work.
3) Some USB WiFis (e.g. MTK MT7662) work in CD-ROM mode by default and need to be switched by usb_modeswitch, you can try to add usb_modeswitch configuration to the following directory: /etc/usb_modeswitch.d.

5.13.4 Change the default WiFi hotspot configuration

FriendlyWrt sets the country, hotspot name and other parameters for USB WiFi by default, with the aim of being as plug-and-play as possible, but this does not guarantee that all modules will be compatible with this setting, you can change these behaviors by modifying the following file:

/lib/wifi/mac80211.sh

5.14 Work with Docker Applications

5.14.1 Work with Docker: Install JellyBin

mkdir -p /jellyfin/config
mkdir -p /jellyfin/videos
docker run --restart=always -d -p 8096:8096 -v /jellyfin/config:/config -v /jellyfin/videos:/videos jellyfin/jellyfin:10.1.0-arm64 -name myjellyfin

After installation, visit port 8096 and here is what you would find:
FriendlyWrt+JerryFin

5.14.2 Work with Docker: Install Personal Nextcloud

mkdir /nextcloud -p
docker run -d -p 8888:80  --name nextcloud  -v /nextcloud/:/var/www/html/ --restart=always --privileged=true  arm64v8/nextcloud

After installtion, visit port 8888.


5.15 Mount smbfs

mount -t cifs //192.168.1.10/shared /movie -o username=xxx,password=yyy,file_mode=0644

5.16 Use sdk to compile the package

5.16.1 Install the compilation environment

Download and run the following script on 64-bit Ubuntu (version 18.04+): How to setup the Compiling Environment on Ubuntu bionic

5.16.2 Download and decompress sdk from the network disk

The sdk is located in the toolchain directory of the network disk:

tar xvf ~/dvd/RK3328/toolchain/friendlywrt-kernel-5.x.y/openwrt-sdk-21.02.1-rockchip-armv8_gcc-11.2.0_musl.Linux-x86_64.tar.xz
# If the path is too long, it will cause some package compilation errors, so change the directory name here
mv openwrt-sdk-21.02.1-rockchip-armv8_gcc-11.2.0_musl.Linux-x86_64 sdk
cd sdk
./scripts/feeds update -a
./scripts/feeds install -a

5.16.3 Compile the package

download the source code of the example (a total of 3 examples are example1, example2, example3), and copy to the package directory:

git clone https://github.com/mwarning/openwrt-examples.git
cp -rf openwrt-examples/example* package/
rm -rf openwrt-examples/

Then enter the configuration menu through the following command:

make menuconfig

In the menu, select the following packages we want to compile (actually selected by default):

"Utilities" => "example1"
"Utilities" => "example3"
"Network" => "VPN" => "example2"

execute the following commands to compile the three software packages:

make package/example1/compile V=99
make package/example2/compile V=99
make package/example3/compile V=99

After the compilation is successful, you can find the ipk file in the bin directory, as shown below:

$ find ./bin -name example*.ipk
./bin/packages/aarch64_cortex-a53/base/example2_0.1-1_aarch64_cortex-a53.ipk
./bin/packages/aarch64_cortex-a53/base/example3_0.1-1_aarch64_cortex-a53.ipk
./bin/packages/aarch64_cortex-a53/base/example1_0.1-1_aarch64_cortex-a53.ipk

5.16.4 Install the ipk to NanoPi

You can use the scp command to upload the ipk file to NanoPi:

cd ./bin/packages/aarch64_cortex-a53/base/
scp example*.ipk root@192.168.2.1:/root/

Then use the opkg command to install them:

cd /root/
opkg install example2_0.1-1_aarch64_cortex-a53.ipk
opkg install example3_0.1-1_aarch64_cortex-a53.ipk
opkg install example1_0.1-1_aarch64_cortex-a53.ipk

5.17 Compile u-boot,kernel or friendlywrt

5.18 Serial port debug

Connect to NanoPi R2C with screen :

screen /dev/ttyUSB0 1500000 8N1

6 Work with FriendlyCore

6.1 FriendlyCore User Account

  • Non-root User:
   User Name: pi
   Password: pi
  • Root:
   User Name: root
   Password: fa

6.2 Update Software Packages

$ sudo apt-get update

6.3 Setup Network Configurations

By default "eth0" is assigned an IP address obtained via dhcp. If you want to change the setting you need to change the following file:

vi /etc/network/interfaces.d/eth0

For example if you want to assign a static IP to it you can run the following commands:

auto eth0
iface eth0 inet static
    address 192.168.1.231
    netmask 255.255.255.0
    gateway 192.168.1.1

You also need to modify the following file to add the DNS configuration:

vi /etc/systemd/resolved.conf

例如设置为192.168.1.1:

[Resolve]
DNS=192.168.1.1

Restart the systemd-resolved service with the following command:

sudo systemctl restart systemd-resolved.service
sudo systemctl enable systemd-resolved.service

To change the setting of "eth1" you can add a new file similar to eth0's configuration file under the /etc/network/interfaces.d/ directory.

6.4 Install the kernel-header package

sudo dpkg -i /opt/linux-headers-*.deb

6.5 Build kernel-header deb package

Please refre to: https://github.com/friendlyarm/sd-fuse_rk3328/blob/master/test/test-build-kernel-header-deb.sh


6.6 Config status LEDs

Put the following into the autorun script to associate the status leds with the ethernet interface, and you can configure it to behave in other ways by referring to these content:

echo netdev > /sys/class/leds/wan_led/trigger
echo eth0 > /sys/class/leds/wan_led/device_name
echo 1 > /sys/class/leds/wan_led/link
 
echo netdev > /sys/class/leds/lan_led/trigger
echo eth1 > /sys/class/leds/lan_led/device_name
echo 1 > /sys/class/leds/lan_led/link

7 Compile FriendlyWrt

7.1 Download Code

mkdir friendlywrt-rk3328
cd friendlywrt-rk3328
repo init -u https://github.com/friendlyarm/friendlywrt_manifests -b master-v21.02 \
        -m rk3328.xml --repo-url=https://github.com/friendlyarm/repo  --no-clone-bundle
repo sync -c  --no-clone-bundle

7.2 1-key Compile

./build.sh nanopi_r2c.mk

All the components (including u-boot, kernel, and friendlywrt) are compiled and the sd card image will be generated.

8 Make Your Own OS Image

9 More OS Support

9.1 DietPi

Dietpi-logo.png
DietPi is a highly optimised & minimal Debian-based Linux distribution. DietPi is extremely lightweight at its core, and also extremely easy to install and use.
Setting up a single board computer (SBC) or even a computer, for both regular or server use, takes time and skill. DietPi provides an easy way to install and run favourite software you choose.
For more information, please visit this link https://dietpi.com/docs/.

DietPi supports many of the NanoPi board series, you may download the image file from here:

10 Resources

10.1 Datasheets and Schematics

11 Update Logs

11.1 2021-10-29

11.1.1 FriendlyWrt:

  • FriendlyWrt has been updated to the official stable version 21.02.1, features are basically the same as 19.07.5, support docker, usb wifi, etc.

11.2 2021-08-30

11.2.1 FriendlyWrt:

  • Upgraded kernel to 5.10.60
  • Add a high-speed 5G USB WiFi support, the network card model is Comfast CF-WU782AC V2, the chip model is MediaTek MT7662
  • Improved USB WiFi compatibility
  • Improved stability on first boot (previous version, bpfilter error occurred in some cases on first boot)

11.2.2 FriendlyCore:

  • upgraded kernel to 5.10.60

11.3 2021-03-05

  • Upgrade FriendlyCore to 20.04 (base on ubuntu focal)

11.4 2021-01-15

  • upgraded kernel to 5.10
  • upgraded friendlywrt to 19.07.5

11.5 2020-09-04

  • Improved the stability of the usb3.0 driver (integrated with official Rockchip updates) and the stability of the r8153 ethernet card
  • Update the driver of the 8153 ethernet card, using mainline kernel's version, the version is v1.11.11
  • Enable serial port UART1 for R2S and NEO3

11.6 2020-08-31

  • Kernel updated to 5.4.61
  • Use the driver r8152-2.13.0 downloaded from Realtek official website (https://www.realtek.com/en/downloads)
  • Improve the USB network card driver, WLAN<->LAN bridge speed can reach 700/500 Mbits/sec
  • Add rockhip rng (hardware random number) driver

11.7 2020-07-10

11.7.1 FriendlyWrt

  • upgraded kernel to 5.4.50
  • added support for NanoPi-NEO3

11.8 2020-05-14

11.8.1 FriendlyWrt

  • upgraded kernel to 5.4.40,fixed bpfilter issue
  • added new usb wifi(rtl8812au)
  • fixed overlayfs issue

11.9 2020-02-25

11.9.1 FriendlyWrt

11.9.1.1 update to v19.07.1,please use branch master-v19.07.1:
mkdir friendlywrt-rk3328
cd friendlywrt-rk3328
repo init -u https://github.com/friendlyarm/friendlywrt_manifests -b master-v19.07.1 -m rk3328.xml --repo-url=https://github.com/friendlyarm/repo --no-clone-bundle
repo sync -c --no-clone-bundle
11.9.1.2 fixed some issues:
  • fixed bpfilter module issue
  • updated feeds to the latest commit
  • removed modemmanager and mwan3 plugins
  • adjusted cpu scaling governor, optimized startup speed

11.10 2020-02-20

11.10.1 FriendlyWrt

  • Optimized openssl performance
  • Added support for PWM fan, support fan speed control (platform: rk33xx)

11.11 2020-01-18

Initial Release